Which products and versions are affected by CVE-2023-29552?

Affected: Smi-S Provider (Netapp); Service Location Protocol (Service Location Protocol Project); Manager Server (Suse), among others. The full list is in the CVE brief.

Is CVE-2023-29552 being exploited in the wild?

It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 25, 2023 and is known to be used in ransomware campaigns.

Is CVE-2023-29552 in the CISA KEV catalog?

Yes. It was added on Nov 8, 2023 with a federal remediation due date of Nov 29, 2023.

Is there a public exploit for CVE-2023-29552?

Public exploit code is available.

Is there a fix for CVE-2023-29552?

Fixed versions are available, including Esxi 7.0.

How urgently should CVE-2023-29552 be patched?

Brandefense priority: patch immediately, because it is listed as exploited in the wild.

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Vulnerability Intelligence

CVE-2023-29552

HighExploitedPublic exploit

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services.

Published Apr 25, 2023 · Updated Apr 22, 2026 · Also known as UBUNTU-CVE-2023-29552

Key Facts

Patch immediately

CVE-2023-29552 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Smi-S Provider (Netapp), Service Location Protocol (Service Location Protocol Project), Manager Server (Suse) and 3 more products.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 25, 2023 and is known to be used in ransomware campaigns. Public exploit code is available.
EPSS estimates a 64% probability of exploitation in the next 30 days.
Fixed versions are available, including Esxi 7.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS (30-day exploit likelihood)

64%

Higher than 99.2% of all scored CVEs

Exploited in the wild

Yes

4 catalog listings, used by ransomware

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2023-29552 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services. This could allow the attacker to use spoofed UDP traffic to conduct a denial-of-service attack with a significant amplification factor.

Known-Exploited Catalog Listings

Catalog	Added	Remediation due	Ransomware use
CISA KEV	Nov 8, 2023	Nov 29, 2023	Not reported
Industry KEV feed	Apr 25, 2023	Nov 29, 2023	Known
CIRCL KEV	Nov 8, 2023	Nov 29, 2023	Not reported
ENISA EUVD	Nov 8, 2023	n/a	Not reported

Required action: Apply mitigations per vendor instructions or disable SLP service or port 427/UDP on all systems running on untrusted networks, including those directly connected to the Internet.

Affected Products

11 affected entries in total

Product	Affected versions	Fixed in
Smi-S ProviderNetapp	See advisory	n/a
Service Location ProtocolService Location Protocol Project	See advisory	n/a
Manager ServerSuse	See advisory	n/a
Linux Enterprise ServerSuse	11, 12, 15	n/a
EsxiVmware	See advisory	7.0

1 more affected products in the full CVE brief

Patched Releases

Esxi

7.0

Timeline

Publicly disclosed
Apr 25, 2023
Added to Industry KEV feed
Apr 25, 2023
Added to CISA KEV
Nov 8, 2023
Added to CIRCL KEV
Nov 8, 2023
Added to ENISA EUVD
Nov 8, 2023
Last updated
Apr 22, 2026

Weakness Type

CWE-406 Insufficient Control of Network Message Volume (Network Amplification)

References

10 more references in the full CVE brief

FAQ

Common Questions.

The Service Location Protocol (SLP, RFC 2608) allows an unauthenticated, remote attacker to register arbitrary services.
Affected: Smi-S Provider (Netapp); Service Location Protocol (Service Location Protocol Project); Manager Server (Suse), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 25, 2023 and is known to be used in ransomware campaigns.
Yes. It was added on Nov 8, 2023 with a federal remediation due date of Nov 29, 2023.
Public exploit code is available.
Fixed versions are available, including Esxi 7.0.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.

Is CVE-2023-29552 Running On Your Attack Surface?

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